3DM-GQ7-GNSS/INS

Tactical-grade dual antenna GNSS aided inertial navigation system with RTK capability.

3DM-GQ7-GNSS/INS

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The MicroStrain 3DM-GQ7-GNSS/INS is an all-in-one navigation solution featuring centimeter-level position accuracy. It is our first dual-antenna, RTK enabled INS designed for outstanding performance, even in unpredictable conditions. It is equipped with dual multiband GNSS receivers, low noise and low drift MEMS inertial sensors, and a robust adaptive Kalman filter.

When paired with our 3DM-RTK Modem and SensorCloud RTK corrections service, the 3DM-GQ7-GNSS/INS is the best single-vendor RTK navigation solution available.

Sensor

Up to 1 cm + 1 ppm positional accuracy with RTK
Multi-frequency GNSS receivers provide 1.2m single point L1/L2 position accuracy
Multi-constellation receivers with 184 tracking channels each allow for rapid signal acquisition and robust signal tracking in challenging GNSS environments
Dual GNSS antenna heading with 0.2° heading accuracy that is immune to magnetic disturbances
Tactical grade IMU with <2°/hr bias instability provides exceptional position accuracy during GNSS outages
0.05° pitch/roll accuracy

Operation

Accepts standard RTCM real-time kinematic (RTK) corrections
Adjustable sampling rates up to 1KHz
34 state auto-adaptive EKF
Independently configurable IMU, GNSS, EKF outputs
Forward compatible MIP Protocol optimizes bandwidth
SensorConnect software for configuration, control, display, and logging
MSCL open source API for easy integration

Package

Anodized Aluminum
Precision alignment features
Highly compact and low profile
- 76 mm x 68.6 mm x 13.3 mm
- 78 grams
USB and RS-232 interfaces
–40 to +85°C operating temperature range

3DM-GQ7-GNSS/INS Data Sheet	Data Sheets	English
4 Ways to RTK - One Pager	Buyers Guide	English
Product Comparison Test Report: 3DM-GQ7-GNSS/INS vs. 3DM-GX5-GNSS/INS	Tech Notes	English
3DM-GQ7 Firmware Change Log	Tech Notes	English
6212-3019 GNSS Antenna	Accessory Guide	English
ANN-MB GNSS Antennas Data Sheet	Accessory Guide	English
6212-3020 Adapter Cable	Accessory Guide	English
Micro D-to-USB Communication and Power Cable	Accessory Guide	English
6212-3021 Connectivity Kit, RS232/GNSS Cable & Antennas	Accessory Guide	English
9011-0058 PSA15R Wall Plug Adapter	Accessory Guide	English
6212-3018 Dual GNSS Antenna Kit	Accessory Guide	English
6212-3022 Connectivity Kit, USB/GNSS Cable & Antennas	Accessory Guide	English
6285-0100 RTK Modem Connectivity Kit	Accessory Guide	English
Micro-D to RS232 Communication and Power Cable	Accessory Guide	English
Craft Cable with Micro DB9 and Flying Leads	Accessory Guide	English
3DM-GQ7-GNSS/INS External Sensor Fusion Support	Application Note	English
3DM-GQ7-GNSS/INS Magnetometer vs Dual-Antenna Heading in Fixed-Wing Aircraft	Whitepaper	English
3DM-GQ7 Assembly Drawing	Technical drawing	English
3DM-GQ7-GNSS/INS GNSS Outage Test Report	Application Note	English
3DM-GQ7-GNSS/INS Dynamic Performance Test Report	Application Note	English

Certificates and Approvals

3DM-GQ7 Declaration of Conformity (EU)	Declaration of Conformity	English
MicroStrain REACH-SVHC Compliance Declaration	Declaration of Conformity	English
3DM-GQ7 Declaration of Conformity (UK)	Declaration of Conformity	English

3DM-GQ7-GNSS/INS CAD File	CAD Step Files
MicroStrain 7-Series Inertial Sensor Firmware	Firmware

3DM-GQ7-GNSS/INS
Performance Grade	Tactical Grade
Features	Accelerometer, Gyroscope, Magnetometer
Random Walk	Accel: 20 µg/√/Hz, Gyro: 0.15 °/√hr
Bias Instability (Gyroscope)	1.5 °/hr
Bias Instability (Accelerometer)	5 μg
Hysteresis	Accel bias: 0.4 mg, Accel gain: 600 PPM, Gyro bias: 0.3 °/s, Gyro gain: 1000 PPM
Communication Port Type	2 x Micro D9
Communication Interface	RS-232, USB
Update Rate	IMU: 1000 Hz, EKF: 1000 Hz, GNSS: 2 Hz
Inputs/Outputs	4xGPIO
Weight	78 g
Weight	2.751 oz
Size	76 mm x 68.6 mm x 13.3 mm
Size	2.99 in x 2.70 in x 0.52 in
Power Consumption	2.2 W
Input Voltage	4.2 V to 16 V
Minimum Operating Temperature	-40 °C
Maximum Operating Temperature	85 °C
Minimum Operating Temperature	-40 °F
Maximum Operating Temperature	185 °F
MTBF	389237 h
GNSS Constellations	GPS/QZSS, GLONASS, Galileo, BeiDou
GNSS Frequency Bands	L1C/A, L2C, L10F, LSOF, E1B/C, E5B, B1, B2
GNSS Input(s)	Onboard Receiver(s)
Sensing Range (Accelerometer)	8 g
Sensing Range (Gyroscope)	300 °/s
Sensing Range (Magnetometer)	8 Gauss
Sensing Range (Pressure)	1260 mbar
Accuracy	Horizontal Position (single point): 1.25 m, Vertical Position (single point): 2 m, Horizontal Position (RTK): 0.02 m, Vertical Position (RTK): 0.02 m, Velocity accuracy (single point): 0.1 m/s, Velocity accuracy (RTK): 0.05 m/s, Roll/Pitch: 0.05 °, Heading (dual antenna): 0.25 °
Ingress Protection Rating	Not Rated
Housing Material	Aluminum
Software	MSCL, ROS, SensorConnect
Mounting Style	Screw Down, Precision Alignment

Product Code	Description
6285-0100	3DM-RTK Modem
6212-3018	Dual GNSS Antenna kit
6212-3019	GNSS Antenna
6212-3020	Adapter Cable
6212-3021	Connectivity Kit, RS232/GNSS CABLE & ANTENNAS
6212-3022	Connectivity Kit, USB/GNSS CABLE & ANTENNAS
6224-0100	MICRO DB9/LEADS